"Imaginary file"

I am playing around with the File class, and I am trying to create files immediately in a container, without being created on the hard disk (just as an experiment, don't have a real goal yet:) )

I wrote the following lines of code:

def myFile = new File ( "test.txt" );

myFile << "First Line Of text";

return myFile;

When I run this 2 times the result is a text file in my container containing two times the line "First Line Of Text". When a run it three times it contains it three etc etc. (I guess you all get the picture)



I know that the command "<<" will append the text if the file already exists, so this means to me that somewhere in the memory the variable "myFile" is still alive...



So I created the following lines of code:

def myFile = new File ( "test.txt" );

myFile << "First Line Of text";

def myResult = myFile;

myFile = null;

return myResult;

But I have the same result. I restarted FileMaker, used the SMReset function, but it is always the same behavior.

What is going on in this piece of code?